Is it a mummy? No! It’s one of our group trying to deal with how cool it can get in the back of the truck when the windows are down on a cool day. I’ve complained about the conditions previously. It would be nice if the windows went up part way or even covered only a portions of the windows so that it wouldn’t be so cool, but, if they do, no one is willing to fix them that way. My statement? It might be best, and certainly more comfortable, to consider a company that has a different seating arrangement or windows that are individualized to each seat if you are going to be in Africa during their winter.